package cc.mrbird.febs.buss.util;

import java.io.*;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLConnection;
import java.util.Date;

public class HttpUtil {
    public static String sendPost(String url, String param) {
        System.out.println("**********************");
        System.out.println("url:"+url);
        System.out.println("参数:"+param);
        System.out.println("**********************");
        OutputStreamWriter out=	null;
        BufferedReader in = null;
        String result = "";
        try {
            URL realUrl = new URL(url);
            // 打开和URL之间的连接
            URLConnection conn = realUrl.openConnection();
            // 设置通用的请求属性
            conn.setRequestProperty("accept", "*/*");
            conn.setRequestProperty("connection", "Keep-Alive");
            conn.setRequestProperty("user-agent",
                    "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");
            // 发送POST请求必须设置如下两行
            conn.setDoOutput(true);
            conn.setDoInput(true);
            // 获取URLConnection对象对应的输出流
            //out = new PrintWriter(conn.getOutputStream());
            //out =new OutputStreamWriter(conn.getOutputStream(),"GB2312");
            out =new OutputStreamWriter(conn.getOutputStream(),"utf-8");
            out.write(param);
            // 发送请求参数
            //out.print(param);
            // flush输出流的缓冲
            out.flush();
            // 定义BufferedReader输入流来读取URL的响应
            in = new BufferedReader(new InputStreamReader(conn.getInputStream(), "utf-8"));
            //in = new BufferedReader(new InputStreamReader(conn.getInputStream(), "GB2312"));
            /*in = new BufferedReader(
                    new InputStreamReader(conn.getInputStream()));*/
            String line;
            while ((line = in.readLine()) != null) {
                result += line;
            }
        } catch (Exception e) {
            System.out.println("发送 POST 请求出现异常！"+e);
            e.printStackTrace();
            result = "";
        }
        //使用finally块来关闭输出流、输入流
        finally{
            try{
                if(out!=null){
                    out.close();
                }
                if(in!=null){
                    in.close();
                }
            }
            catch(IOException ex){
                ex.printStackTrace();
            }
        }
        return result;
    }

    public static void main(String[] args){
        String str="2019/9/19 16:18:32";
        Date date=StringUtil.str2Date_(str);
        String result= HttpUtil.sendPost("http://39.106.87.45/hall_buss/alipayController.do?getHallInfo","");
        System.out.println(result);
    }
}
